Matlab image gray to color

However the colors are NOT the original colors of the iris as if you had snapped it with a color camera. How to convert RGB image into Gray image in Matlab. I am trying to implement an algorithm in computer vision and I want to try it on a set of pictures.
Matlab image gray to color
This video gives clear view about converting of color image to gray image, Binary image and intensity profile of a given line with in a image. Ankit Kumar, learner, Amateur Programmer. Everything above the line of y was used to make a gray image only. If you are new to how images are stored in a computer, let me explain.

There were colour films but they are not what we call 'natural colour' - producers were painting on the surface of the film from a very early time.

Matlab image gray to color
Drawing template includes drafting standards font sizes, dimension, annotation styles, etc. The three values represent intensity in different spectral bands, which the eye perceives as different colors. How do I convert BCD numbers to gray code. The pictures are all in color, but I don't want to deal with that.